Header pipe



FIG. 1 is a front elevational view of the header pipe showing my newdesign;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right end elevational view thereof;

FIG. 6 is a left end elevational view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is an enlarged right end elevational view thereof; and,

FIG. 9 is an enlarged left end elevational view thereof.

The broken lines illustrate portions of the article and form no part ofthe claimed design.

CLAIM The ornamental design for a header pipe, as shown and described.